Motor for starting engines.



L. HACHENBERG.

MOTOR FOR STARTING ENGINES.

APPLICATION IILED AUG-3|, 1916.

1,241,625. Patented 001;. 2,1911.

2 SHEETS-SHEET I.

anvewtoz W. 'V. WW. 7..

L. HACHENBERG.

MOTOR FOR STARTING ENGINES.

APPLICATION FILED AUG-311M916.

1,241,625. Patented 00h 2,1917.

2 SHEETS-SHEET 2- Lou/l3 Has/z 62252137 ran snares rareni'r ornron.

Lo IsHAoHENBEne, or new YonK, N. Y.

f -M'1OR non STARTING ENGINES. r 1

. Application filed August 31, 1916' Serial No. 117,836.

To all whom it may concern Be it known that I," LOUIS Haorrnnnnne,

i "acitizen of the United States of America, resldlng at New York, N. Y., have invented tion.

a new and useful'Motor for Starting Engmes, of whlch the followlng 1s a SPQClfiCt form of the invention-LI construct .a motor with a pair of oscillating fluid pressure cylinders, disposedon opposite sides of the motor and arranged ,to operate a power shaft which carries a clutch element for cooperation with acompanion clutch element connected with the engineto be started.

A special featureis the provision of the oscillating cylinders .and the support on which they are mounted with sliding valve faces having cooperating ports.

,Anotherspecial feature is the making of the support for the cylinders in the form of acasing completely inclosing the cylinders and the provision of one of the walls of the caslng with proper passages for the actuating fluid. These passages comprise grooves in ,the outer face of the rear wall, said grooves being covered by a removable plate. Various other features'of the lnventlon will appear as the specification proceeds, at

tention being now directed to the accompanylng drawings formlngpart hereof and 2 wherein I have illustrated a concrete and I practical embodiment of the invention.

In these drawings: "Figurel, is a front view of-the motor with the walls of. the motor broken away and the cylinders within the casing appearing in section,the sectional portion of this view being taken substantially on the plane of the side of the machine with the cap plate 1ine 1.1 of Fig.3.

Fig. 2, is a view of the opposite or rear broken away to show the ports and passages for supplying and exhausting the actuating fluld.

Specification of Letters Patent.

Fig. 3, is a cross sectional view taken sub i Patented Oct. 2, 191 '7.

stantially on the plane of the line 3 3 of Fig. 1

Fig. 4, is a broken side View of the motor with the controlling valve shown in section as on the line &-4 of Fig. 2. 1

Fig. 5, is a horizontal transverse sectional view of one of the motor cylinders taken in the plane of one of the ports therein.

The base or support for the cylinders is in the formof a casing 7 having for convenience of assemblage a removable front wall Sand a relatively fixed or integral rear wall 16.

The cylinders are designated 9 there being two of them in the machine illustrated disposed at opposite sides of the powershatt between each cylinder and the adjacent supporting wall, said cylinders having for this purpose, in the illustration, raised valve faces .14 adjacent opposite ends of the same engaging corresponding raised valve faces 15,0n the rear wall 16 of the casing as shown infFig. 3. Combination inlet and exhaust ports 17 open from the opposite end portions of the cylinder out through the flat tened valve faces 14 thereat, said ports being shown as flared at the mouths thereof as in dicated at 18 and registering in the oscillat- 1 the reduced outer end portions 24 of the pivots 12 and forming abutments for the outer ends of the springs. i The actuating fluid, which may be steam,

compressed air or the like is supplied in the branches 26 communicating with supply passages 27 provided in the valve wall 16,

which passages communicate with the inlet ports 19. The exhaust ports communicate with exhaust passages 28 provided in the valve wall 16, said passageshaving exhaust outlets 29. g 1

A very simple and practical method of providing the exhaust and supply passages is to form thesepassages as open grooves in the outer face of the wall 16 and then to ap: ply a cap plate 30 to said wall covering said grooves. p

'Pistons 31 are provided in the cylinders, said pistons being connected with the power shaft 10 by means such as piston rods 32 engaging a crank pin 33 on the shaft.

The means for coupling the starting motor to the engine comprises, in the structure shown, a toothed clutch disk 34 slidably keyed on the power shaft 10 and adapted to be shifted by a pivoted lever 85 into engage ment with a correspondingly toothed clutch disk on the opposed engine shaft 37, said. engine havmg the usual fly wheel as indicated at38. By thus coupling the starting motor directly to the engine shaft I am able to utilize the inertia of the fly wheel after the motor has started to turn the engine- A suitable control valve is provided and the same is herein indicated at 39 located in the supply conduit 25 and provided with a stem 40 connected to a control lever 41.

This control lever is shown pivoted at 42 011 a bracket 43 and provided with an arm 44 connected withthe upper end of a clutch shifting lever 35.

By the'construction just described the con-.

trol lever both operates the control valve and the clutch and the parts are preferably proportioned somewhat as indicated so that the control lever will first slightly open'the valve and admit pressure to the cylinders before engaging the two clutch members. This enables the movable clutch member to more readily find and pick up the teeth of the companion clutch member.

The moving'parts of the motor are wholly inclosed and so are easy to lubricate and are protected from in ury. The structure d sclosed is partlcularly desirable for motor boats'since the shaft 10 is disposed. at the.

lowest portion of the motor in position to be conveniently coupled to the engine shaft.

which as well known is located as 10w as possible in the boat. The motor is simple,"

very compact and provides for its size con- SlClGI'ZlblG power with the further advantage Copies of this patent may be obtained for exhaust outlets 29 it will be obvious that the motor may be rotated in the opposite direcbers and closing off thefluid pressure sup-' ply. As the control valve moves to closed position the fluid pressure exerts its force to close the valve and to hold the valve. 7

closed against'its seat.

'What I claim is:

A starting motor comprising a motor casing open at the front and having integral side and rear walls, said fixed rear wall having open inletand exhaust channelsextending across the upper part of the outer exposed face thereof and open inlet and haust channels extending'across the lower part of the outer exposed face thereof, sa1d fixed rear wall further. having inlet ports extendmg from sa1d inlet channels through to the opposite inner face of therear wall and exhaustports adjacent the inlet ports and extending from theexhaust channels through to the inner face of the rear wall, a cover plate removably secured to said rear casing \valland covering the open channels therein, said cover plate having inlet and exhaust ducts therein communicating with the inlet and exhaust channels respectively, raised valve faces on the inner side of the fixed rear wall and through which the inlet and exhaust ports extend, a front wall for the casing closing the open front of the casing and removably secured in place, a crank shaft in the lower central portion of the casing journaled between the fixed rear wall and the removable'front wall, a'pair of cyl-' inders within the casing above the crank shaft and at opposite sides of the same and provided with trunnions intermediate the ends thereof, journaled between the fixed rear and'removable front "walls, said cyl inders each having raised valve faces on the side thereofadjoining the rear casingwall and bearing on the valve faces on saidrear wall, each of said cylinders further having ports at the opposite ends thereof extending V directly through the side wall of the cylinder and through to the valve faces 'thereat, in position to register with the inlet and ex haust ports, and pistons in the cylinders connectcd with the crank shaft.

' LOUIS five cents each. by addressing the Commissioner of Iaten ts Washington, D. C. 

